Bộ 3 Đề kiểm tra Unit 4 - Tiếng anh 10 iLearn Smart World có đáp án (Đề 1)

Student A: “How long have you been a volunteer for the Red Cross?” Student B: “______________”

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Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best completes each of the following exchanges.

Student A: “How long have you been a volunteer for the Red Cross?”

Student B: “______________”

By the age of 25.

When I was 25 years old.

When I am 25 years old.

Since I was 25 years old.

Giải thích

Chọn D